diff --git a/src/recipes/minimal/hook/customize.sh b/src/recipes/minimal/hook/customize.sh
index 51386fc..e8f4852 100755
--- a/src/recipes/minimal/hook/customize.sh
+++ b/src/recipes/minimal/hook/customize.sh
@@ -4,7 +4,7 @@ printf "Customize hook script for mmdebstrap %s\n\n" "$RECIPE"
 
 printf "Remove root password\n"
 #echo "root:root" | chpasswd
-passwd -d root
+chroot $1 passwd --delete root
 
 printf "Add MNT repository and key\n"
 chroot $1 apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 376511EB67AD7BAF